说明：  这是我们大学教授说的世界范围内讲解FDTD讲的最好的一本书，里面有大量的C语言程序，我用了觉得很好，希望可以分享给大家
(This is the world we are talking about a university professor to explain the scope of FDTD talking about the best of a book, there are a large number of C-language program, I feel very good with the hope that you can share to everyone)